How Much Can Solar Save in Williamsfield?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$120
Current Bill/mo
$135
Est. Lease + Battery
6.8 yrs
Payback Period
$35,391
25-Year Savings
What You're Paying Now
Without solar, here's what Ameren Illinois electricity will cost you over time at 6% annual rate increases.
Monthly Bill
$120
Annual Cost
$1,440
25-Year Cost (No Solar)
$79,005
Your Solar Investment
6 kW System
$17,400
$9,595
After All IL Incentives
DG Rebate ($300/kW)-$1,800
Illinois Shines RECs (lump sum, ~18 mo)-$6,005
With vs Without Solar in Williamsfield
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $120/mo | $105/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-6/mo |
| 5-Year Cost | $7,776 | $6,300 |
| 25-Year Cost | $79,005 | $43,614 |
| Rate Control | None — utility sets rates | Fixed at $0.10/kWh (avg.) for 15 years |
| Home Value Impact | None | +$15,000–$25,000 (tax-exempt) |
Your Solar Savings Over Time
Estimated 25-Year Total Savings
$35,391
Without Solar
With Solar
Year 1
$1,440
$1,507
Year 2Payback Year
$2,966
-$2,971
Year 5
$8,117
$1,755
Year 10
$18,980
$10,222
Year 15
$33,517
$19,705
Year 20
$52,971
$30,634
Year 25
$79,005
$43,614
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,440 | $1,507 | -$67 |
| Year 2Payback | $2,966 | -$2,971 | $5,937 |
| Year 3 | $4,584 | -$1,420 | $6,005 |
| Year 4 | $6,299 | $154 | $6,145 |
| Year 5 | $8,117 | $1,755 | $6,363 |
| Year 6 | $10,044 | $3,383 | $6,661 |
| Year 7 | $12,087 | $5,042 | $7,045 |
| Year 8 | $14,252 | $6,733 | $7,519 |
| Year 9 | $16,547 | $8,459 | $8,089 |
| Year 10 | $18,980 | $10,222 | $8,758 |
| Year 11 | $21,559 | $12,026 | $9,533 |
| Year 12 | $24,293 | $13,873 | $10,420 |
| Year 13 | $27,190 | $15,766 | $11,425 |
| Year 14 | $30,262 | $17,709 | $12,553 |
| Year 15 | $33,517 | $19,705 | $13,812 |
| Year 16 | $36,968 | $21,759 | $15,210 |
| Year 17 | $40,627 | $23,874 | $16,753 |
| Year 18 | $44,504 | $26,055 | $18,449 |
| Year 19 | $48,614 | $28,307 | $20,308 |
| Year 20 | $52,971 | $30,634 | $22,337 |
| Year 21 | $57,590 | $33,043 | $24,546 |
| Year 22 | $62,485 | $35,539 | $26,946 |
| Year 23 | $67,674 | $38,128 | $29,546 |
| Year 24 | $73,174 | $40,818 | $32,357 |
| Year 25 | $79,005 | $43,614 | $35,391 |
Start Saving in Williamsfield
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